package com.xr.elm.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.xr.elm.common.R;
import com.xr.elm.entity.Employee;
import com.xr.elm.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登陆验证
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee>  login(HttpServletRequest request, @RequestBody Employee employee){
//    1.、将页面提交的密码password进行md5加毫处理
        String password = employee.getPassword();
        password=DigestUtils.md5DigestAsHex(password.getBytes());
//    2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp=employeeService.getOne(queryWrapper);
//    3、如果没有查询到则返回登录失败结果
        if (emp == null){
            return R.error("登陆失败，用户名不存在");
        }
//    4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)){
            return R.error("登陆失败,密码错误");
        }
//    5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0){
            return R.error("登陆失败,账号已禁用");
        }
//    6、登录成功，将员工1d存入Session返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    @PostMapping("/logout")
    public R<String>  logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }
@PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
log.info("新增员工信息：{}",employee.toString());
    //设置初始密码，md5加密
    employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
//    employee.setCreateTime(LocalDateTime.now());
//    employee.setUpdateTime(LocalDateTime.now());
    //获取当前登陆用户得ID
//    Long empId= (Long) request.getSession().getAttribute("employee");
//    employee.setCreateUser(empId);
//    employee.setUpdateUser(empId);

    employeeService.save(employee);
    return R.success("新增员工成功");
    }

    @GetMapping("/page")
    public R<Page>  page(int page,int pageSize,String name){
        //构造分页构造器
        Page pageInfo = new Page(page, pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //过滤条件
        queryWrapper.like(StringUtils.hasText(name),Employee::getName,name);
        //排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);
        //查询
        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateUser(empId);
//        employee.setUpdateTime(LocalDateTime.now());
        employeeService.updateById(employee);
        return R.success("新增员工信息成功");
    }
    @GetMapping("/{id}")
    public R<Employee>  getById(@PathVariable Long id){
        log.info("根据id查询用户");
        Employee employee = employeeService.getById(id);
        if (employee!= null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }

}
